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Status of ICD-11
Donna Pickett, MPH, RHIA
Chief, Classifications and Public Health Data Standards, NCHS
NCVHS
February 17, 2016
National Center for Health Statistics
Classifications and Public Health Data Standards
Overview of ICD-11
• History of ICD • ICD-11 Revision Process
– Goals – Development – New features
• Current status – ICD-11 Tools – Timeline
• How ICD-11 compares to ICD-10-CM
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ICD Revision History
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ICD Revision No. Year of Conference When Adopted
Year in Use in the U.S.
ICD, Clinical Modification
Year in Use in the U.S.
First 1900 1900-1909
Second 1909 1910-1920
Third 1920 1921-1929
Fourth 1929 1930-1938
Fifth 1938 1939-1948
Sixth 1948 1949-1957
Seventh 1955 1958-1967
Eighth 1965 1968-1978 ICDA-8 H-ICDA-1 H-ICDA-2
1968-1978 1968-1972 1973-1978
Ninth 1975 1979-1998 ICD-9-CM 1979
Tenth 1989 1999- ICD-10-CM Oct. 1, 2015
ICD-11 Revision Goals
• Ensure that ICD-11 will function in an electronic environment – Will be a digital product – Link with terminologies (e.g., SNOMED)
• 22 July 2010 - WHO and the International Health Terminology Standard Development Organisation (IHTSDO) have worked on a collaborative arrangement to link the WHO Family of Classifications and the Standardized Nomenclature of Medicine - Clinical Terms (SNOMED CT). This arrangement enables the linkage of terminologies and classifications. In the era of computerization of health information and electronic health records, it represents a major achievement.
– ICD Categories • “defined” by "logical operational rules" on their associations and
details – Support electronic health records and
information systems
5
ICD-11 Revision Goals
• Multi-purpose and coherent classification
– Mortality, morbidity, primary care, clinical care, research, public health…
– Consistency & interoperability across different uses
• International multilingual reference standard for scientific comparability – English, French, Spanish, Russian, Chinese, Arabic
6
ICD-11 Development Process
• Topic Advisory Groups (TAGs)
• Content – Definitions
– Content model parameters
• Structure (linearizations) – Mortality, morbidity, primary care, quality/patient
safety
• JLMMS (mortality & morbidity linearizations)
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T
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ICD Contribution WHO
iCAT Software Team
JLMMS Task Force RSG SEG
Morbidity TAG
Mortality TAG
Functioning TAG
Quality & Safety TAG
Primary care TF
RSG
Internal Medicine TAG
Paediatrics TAG
Dentistry TAG
Dermatology TAG
Rare Diseases TAG
External Causes and Injuries TAG
GURM
Mental Health TAG
Musculoskeletal TAG
Neoplasms TAG
Neurology TAG
Ophthalmology TAG
raditional Medicine TAG
Health Informatics and Modelling TAG (HIM TAG)
Genito-Urinary,
Reproductive and
Maternal TAG
Gastroenterology WG
Cardiovascular WG
Hepatology & Pancreatobiliary WG
Nephrology WG
Endocrinology WG
Rheumatology WG
Haematology WG
Respiratory WG
Working Groups
ICD-11 Development Process
• RSG & RSG-SEG chair: Dr. Christopher Chute, Johns Hopkins • Cross-cutting Topic Advisory Groups (TAGs):
– Co-chair Mortality TAG – Robert Anderson, NCHS – Co-chair Morbidity TAG – Donna Pickett, NCHS – Co-chair Functioning TAG – Cille Kennedy, ASPE
• Content
– Definitions – Content model parameters
• Structure (linearizations) – Mortality, morbidity, primary care, quality/patient safety
• JLMMS (mortality & morbidity linearizations)
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• All ICD entities will have definitions: key descriptions of the meaning of the category
in human readable terms – to guide users • Limited definition in Print Version – 100 words
• Detailed definitions ONLINE
• Definitions will be compatible with: – Content Model
– Diagnostic Criteria
– Across the whole classification and the versions
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Major events
• External ICD Process Review – http://www.who.int/classifications/icd/revision/2
015_11_ICD11_Newsletter.pdf?ua=1
• Activities of individual vertical TAGs
• JLMMS Task Force
• WHO working
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Main activities • Restructure infectious diseases chapter • Edit ‘Dementia’ • Structure ‘postoperative complications’ • Edit and design ‘primary care’ • Revisit ‘shorelining’ • Edit volume 2 • Ordering
– Terminology – Terms – Parenting – Exclusions
• Planning
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PC med-res 11
PC med-res 12
PC med-res 13
PC med-res 21
PC med-res 22
PC med-res 31
PC med-res 33
PC med-res 34
PC med-res 32
PC med-res 35
Joint lin111
Joint lin112
Joint lin121
Joint lin133
Joint lin131
Joint lin132
Joint lin221
Joint lin222
Joint lin211
Joint lin311
Joint lin312
Joint lin321
Joint lin341
Joint lin342
Joint lin351
PC – Low 1
PC – Low 2
PC – Low 3
e.g. Dentistry, ICD-11 GM
Is a category and has a code
Shoreline
Lumped into a category
International PRIMARY CARE low PRIMARY CARE intermediate Joint linearization Extensions
National Linearizations Specialty - Research
Is a category and has a code
Shoreline
Lumped into a category
PC med-res 21
PC med-res 22
PC med-res 31
PC med-res 33
PC med-res 34
PC med-res 32
PC med-res 35
Joint lin311
Joint lin312
Joint lin321
Joint lin341
Joint lin342
Joint lin351
PC – Low 3
e.g. Dentistry, ICD-11 GM
PC med-res 11
PC med-res 12
PC med-res 13
Joint lin111
Joint lin112
Joint lin121
Joint lin131
Joint lin132
Joint lin133
Joint lin211
Joint lin221
Joint lin222
PC – Low 1
PC – Low 2
International PRIMARY CARE low PRIMARY CARE intermediate Joint linearization Extensions
National Linearizations Specialty - Research
Above or Below Shoreline – good classification (linearization)
• Content is still in foundation • Content is used as index entry • Content is codable with postcoordination • Postcoordination= 2 or more codes describe one
disease
• Criteria: relevance 95% of cases per country by age group, and sex for mortality and morbidity
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Main activities • Restructure infectious diseases chapter • Edit ‘Dementia’ • Structure ‘postoperative complications’ • Edit and design ‘primary care’ • Revisit ‘shorelining’ • Edit volume 2 • Ordering
– Terminology – Terms – Parenting – Exclusions
• Planning
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Hierarchy ‘Diabetes’ Chapter 06 - Endocrine Chapter codes
Diabetes mellitus and intermediate hyperglycaemia
Type 1 DM Type 2 DM Other DM DM,
unspecified type
Intermediate Hyperglycaemi
a
Insulin-resistance syndromes
Complications of DM
ICD-11 Browser Diabetes
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Coding example
Patient with type 1 DM with diabetic retinopathy
6A10 Type 1 diabetes mellitus
MG45 Diabetic retinopathy
6A10/MG45 = type 1 DM with diabetic retinopathy
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Chapters • Chapter 01 – Infectious diseases
• Chapter 02 – Neoplasms
• Chapter 03 – Diseases of the blood and blood-forming organs
• Chapter 04 – Disorders of the immune system
• Chapter 05 – Conditions related to sexual health
• Chapter 06 – Endocrine, nutritional and metabolic diseases
• Chapter 07 – Mental and behavioural disorders
• Chapter 08 – Sleep – Wake disorders
• Chapter 09 – Diseases of the nervous system
• Chapter 10 – Diseases of the eye and adnexa
• Chapter 11 – Diseases of the ear and mastoid process
• Chapter 12 – Diseases of the circulatory system
• Chapter 13 – Diseases of the respiratory system
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Chapters • Chapter 14 – Diseases of the digestive system
• Chapter 15 – Diseases of the skin
• Chapter 16 – Diseases of the musculoskeletal system and connective tissue
• Chapter 17 – Diseases of the genitourinary system
• Chapter 18 – Pregnancy, childbirth and the puerperium
• Chapter 19 – Certain conditions originating in the perinatal period
• Chapter 20 – Developmental anomalies
• Chapter 21 – Symptoms, signs, clinical forms, and abnormal clinical and laboratory findings, not elsewhere classified
• Chapter 22 – Injury, poisoning and certain other consequences of external causes
• Chapter 23 – External causes of morbidity and mortality
• Chapter 24 – Factors influencing health status and contact with health services
• Chapter 25 – Codes for special purposes
• Chapter 27 – Traditional medicine
• Chapter 26 –Extension Codes
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Differences to ICD-10
• ICD-11 has five new chapters: – Chapter 3 Diseases of the Blood and Blood-
forming Organs – Chapter 4 Disorders of the Immune System. – Chapter 6 Conditions related to Sexual Health. – Chapter 8 Sleep-Wake Disorders – Chapter 26 Extension codes – Chapter 27 Traditional Medicine
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Differences to ICD-10
Term Translation Foundation Everything in ICD Entity Thing in foundation Linearization Classification Stem code Category (mostly dagger) Extension code Additional information Linearization parents Classification hierarchy Chapter, Block, Category,
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Differences to ICD-10- Coding scheme • The chapter numbering:
– now arabic numbers – not roman numerals
• The coding scheme for categories: – now minimum 4 characters – 2 levels of subcategories
• Coding scheme – always has a letter in the second position to distinguish from
the codes of ICD-10. – No l,I (L,i); 0,O (Zero, o)
• First character of the code always relates to the chapter number. – 1-Z
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Differences to ICD-10 - Terminology
• ICD-10 had a range of expressions to describe a causal relationship between conditions in a code title. – In ICD 11, the preferred term is “due to”.
• ICD-10 had a range of expressions indicating the coincidence of two conditions in a code title (e.g. “in” or “with”). – In ICD-11, the preferred term is “associated with”.
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Differences to ICD-10: Extensions
Term Translation Diagnosis timing indicator Histopathology Severity scale value Consciousness Dimensions of injury Substances Topology Scale Value Code usage Specific Anatomic Detail Temporality Capacity or context Etiology Dimensions of external causes
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New Feature: X – Extension Code Chapter Type 1 Type 2 Type 3
Severity Main Condition (types) History of
Temporality (course of the condition)
Reason for encounter/admission
Family History of
Temporality (Time in Life)
Main Resource Condition Screening/Evaluation
Etiology Present on Admission
Anatomic detail Topology Specific Anatomic Location
Provisional diagnosis
Histopathology Diagnosis confirmed by
Biological Indicators Rule out / Differential
Consciousness
External Causes (detail)
Injury Specific (detail)
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Differences to ICD-10: Definitions
• Content model – ICD-11 categories have a short and a long definition. – All ICD-11 categories include separate information on
• anatomy, • aetiology and • other aspects
Can be accessed for search purposes, or when browsing in the tabular list of the • For morbidity, the definition of main diagnosis has
changed: – reason for admission after assessment at the end of the stay.
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ICD-11 Tools apps.who.int/classifications/icd11/browse
• Coding tool: spelling-synonyms no problem icd11ct.cloudapp.net/ct#/
• ICD-11 browser – See foundation and linearization – grid view – Download versions – ‘frozen’ versions – See differences
• Proposal tool – Make suggestions and discuss them – Notifications
• Review tool • Translation tool
– Translate in your language
• Mapping tool – See mapping at detailed level – Comment mapping to and from ICD-10
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www.who.int/classifications/icd/revision/
• Online information – FAQ
– Video
– Working groups
– ICD-11 features
– Becoming involved
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The ICD-11 Beta Phase
• Draft ICD-11 Content presented in web portal: www.who.int/classifications/icd11
• Daily Updates
• Participants can: – Make comments
– Make proposals to change ICD Categories
– Propose structured definitions of diseases
– Participate in field testing
– Assist in translating ICD into other languages
• Answer Single Assessment Questions – (e.g. Is this category in the right place? Is this scientifically accurate?)
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ICD-11 Review Process
• Focus – Scientific accuracy
– Completeness of each unit
– Internal consistency
– Utility/relevance of each unit
• Types of Review – Initial
– Continuous
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Field Trials
• WHO will develop a framework to ensure standardization of beta testing
• Goals – Test fitness of ICD-11 for multiple purposes
(mortality, morbidity, quality, other use cases)
– Ensure comparability between ICD-10 and ICD-11
– Increase consistency, identify improvement paths, reduce errors
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Field Trials
• Assessments – Applicability (feasibility): ease of use
– Reliability (consistency): same results by all each time
– Utility (added value): renders useful information
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Field Trials
• Key Uses – Mortality: cause of death coding, verbal autopsy
– Morbidity: hospital discharge, outpatient, casemix
• Different settings – Primary care: high and low resource settings
– General health care
– Research settings: population health, clinical research
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Examples of ICD-10-CM Concepts in ICD-11
Concept ICD-10 ICD-11 Beta ICD-10-CM 9-CM
Encounter for prophylactic breast removal
No No (as a unique code)
Yes 1994
Female genital mutilation
No Yes Yes - 2005 2004
Genetic susceptibility to breast CA
No No Yes 2004
CKD Staging Yes - 2010 Yes Yes 2005
Pressure ulcer stages
Yes - 2010 Yes Yes - 2005 2008
Laterality No Yes – as extension code
Yes No
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ICD-10-CM Implementation Timeline
• Evaluation of ICD-10 for U.S. purposes (1994 - 1997) Summary document available at
http://www.ncvhs.hhs.gov/031105a1.htm • NCVHS Hearings (1997-2003)
Summary document available at http://www.ncvhs.hhs.gov/031105a2.htm
• NPRM (2008) • Final Rule (2009) • NPRM (2012) • Final Rule (2012) • Interim Final Rule (2014)
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Thank You
Donna Pickett, MPH, RHIA dfp4@cdc.gov
For more information please contact Centers for Disease Control and Prevention 3311 Toledo Road, MD 20782 Telephone: 1-800-CDC-INFO (232-4636)/TTY: 1-888-232-6348 E-mail: cdcinfo@cdc.gov Web: http://www.cdc.gov The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
National Center for Health Statistics Classifications and Public Health Data Standards
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